I was looking for the KAF2 manual online to compare, but I didn't try very hard. I'll have to try again tonight.
On Wed, 1 Dec 2010, Ron D'Eau Claire wrote: > I don't have a KAF2 Hisashi-san. Of course, they are both active filters > but, from the comments I've noted here on the reflector, it sounds as if the > AF1 is more "aggressive" than the KAF2. > > The AF1 is predominately a narrow bandpass filter but it also has a low-pass > filter section to roll off the higher frequencies. You can see typical plots > of the bandpass characteristic in the AF1 manual available on the Elecraft > web site (look under Manuals and Downloads/Mini-Modules/AF1 Audio Filter). > > I can say the AF1 behaves very much like most active filters I've used with > about all the selectivity possible (in BPF2 position) without serious > "ringing". The AF1 is also tunable from the front panel to match your audio > frequency preference. Also, the high-frequency cutoff point of the low-pass > filter is adjustable from the front panel and it has a front-panel audio > gain control. > > Ron AC7AC > > -----Original Message----- > > I wasn't paying enough attention lately. Does anyone have a comparison > of the audio filter in the AF-1 vs the one in the KAF2? I've wanted a > low pass filter for a while, and after seeing a youtube video of the > AF-1 I think that's what I'm looking for. > > -- Hisashi T Fujinaka - [email protected] BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
